Definitions

1. noun

a slight pouting expression of the mouth, especially in response to something unpalatable or unpleasant

“She gave a delicate moue as she tasted the bitter medicine.”

2. noun

a pouting or sulking expression, especially in response to being disappointed or thwarted

“He threw a moue and stormed out of the room after hearing the bad news.”

3. verb

to pout or make a sulking expression

“The child began to moue when she didn’t get her way.”